[DEWFPO]

Some engines have internal bypass valves in the oil filter housing, most don't and so it's required in the filter itself.

When a filter is in bypass mode, it's really not a problem as long as it's not in bypass mode for a long periods of time. The oil is still as clean as the filter can make it and having it flow throughout the engine without going through the filter for a few minutes is not a problem at all. These engines have tight tolerances, great filtering systems and amazing computer controls. It's not like there's a bunch of 'junk' getting into the engine and floating in the oil.

Most all small equipment engines operate in crappy conditions, they're abused constantly and they don't run oil filters at all. And many don't get their oil changed for years. These engines are not self destructing or blowing clouds of oil. Look at the old VW Bug engines, no oil filter, just a screen, an those engines lasted FOREVER.

So, relax. Your at 98%, if you want 99%, then install a dual/bypass filter setup and sleep better.

my 2 cents. Tomorrow it will be worth 1.99 cents.

DEWFPO